Offline EXTEND command

The scenarios in this section show how to use the EXTEND command in conjunction with key related keywords and subcommands.

Before executing the control statement, you must ensure that adequate space is present on the primary volume of the target area data set to accommodate the request for additional UOWs. If the necessary space is not present, allocate volumes to the area data set by using IDCAMS ALTER ADDVOLUME.

EXTEND scenarios

Primary command/scenario task	Subcommand/keyword	Concept/process	Reference
EXTEND Simultaneously Extend IOVF, Analyze, and Create Image Copy	POINTER_VALIDATION IC	Perform one-step, concurrent maintenance and analysis tasks Create image copy of extended DEDB	Simultaneously extend IOVF analyze and create image copies
EXTEND Extend IOVF and SDEP Disable Pointer Validation Stack Image Copies	POINTER_VALIDATION IC with STACK_NAME	Disable automatic pointer validation (must be turned off by user) Create stacked image copies of extended DEDB	Extend IOVF and SDEP, disable automatic analysis, and stack image copies
EXTEND Extend IOVF	IAREA EXTEND_IOVF IC	Limit space extend and associated tasks to one area only Extend IOVF Create output image copy of extended area	Extend IOVF

Note

Be sure to revise the DBD to increase IOVF so that subsequent offline processes (such as CHANGE or UNLOAD/RELOAD) do not use the old ACB and decrease the amount of IOVF space.

Offline EXTEND command

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